a(n) = prime(n)^3 - prime(n^3).

Terms

a(0) =6a(1) =8a(2) =22a(3) =32a(4) =640a(5) =876a(6) =2604a(7) =3188a(8) =6648a(9) =16470a(10) =18834a(11) =35900a(12) =49518a(13) =54698a(14) =72504a(15) =110004a(16) =157722a(17) =169422a(18) =231732a(19) =276112a(20) =292880a(21) =380748a(22) =441714a(23) =555252a(24) =741144a(25) =835258a(26) =871866a(27) =976192a(28) =1015598a(29) =1130314